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水平垂直居中.html
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水平垂直居中.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>水平垂直居中</title>
<style>
.parent1 {
width: 300px;
height: 300px;
background: brown;
margin-bottom: 32px;
position: relative;
line-height: 300px;
}
.child1 {
width: 150px;
height: 150px;
background: green;
text-align: center;
line-height: 150px;
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
margin: auto;
}
.parent2 {
width: 300px;
height: 300px;
background: brown;
margin-bottom: 32px;
position: relative;
}
.child2 {
width: 150px;
height: 150px;
background: green;
text-align: center;
line-height: 150px;
position: absolute;
left: 50%;
top: 50%;
/*自身宽度的一半*/
margin-left: -75px;
/*自身高度的一半*/
margin-top: -75px;
}
.parent3 {
width: 300px;
height: 300px;
background: brown;
margin-bottom: 32px;
position: relative;
}
.child3 {
width: 150px;
height: 150px;
background: green;
text-align: center;
line-height: 150px;
position: absolute;
left: 50%;
top: 50%;
/*自身宽高的一半*/
transform: translate(-50%, -50%);
}
.parent4 {
width: 300px;
height: 300px;
background: brown;
margin-bottom: 32px;
display: flex;
justify-content: center;
align-items: center;
}
.child4 {
width: 150px;
height: 150px;
background: green;
text-align: center;
line-height: 150px;
}
</style>
</head>
<body>
<div class="parent1">
<div class="child1">第一种</div>
</div>
<div class="parent2">
<div class="child2">第二种</div>
</div>
<div class="parent3">
<div class="child3">第三种</div>
</div>
<div class="parent4">
<div class="child4">第四种</div>
</div>
</body>
</html>
<style>
.parent4 {
width: 300px;
height: 300px;
background: brown;
margin-bottom: 32px;
display: flex;
justify-content: center;
align-items: center;
}
.child4 {
width: 150px;
height: 150px;
background: green;
text-align: center;
line-height: 150px;
}
</style>